Tutorial here: photoextremist.com/2010/03/cross-eyes-illusion/
How to Create a Stereoscopic Image for Crossed Eye Image Viewing
Autostereogram - Wikipedia
Autostereogram - Wikipedia
magic eye picture Optical illusions, Magic eye pictures, Magic eyes
/wp-content/uploads/2012/08/3d-po
Optical Illusions - Eye Tricks - Mind Puzzles
Autostereogram - Wikipedia
4D Red Dots-Blue Dots cyclic cross-eyed stereographic opti…
How to make Cross Eye 3D images - Quora
Cross-Eyed Stereogram Gallery : Smooth Landing (cross view) : Stereogram Images, Games, Video and Software. All Free!
3D picture pairs, Optical Illusions#